Colin M1BUU
banner
m1buu.bsky.social
Colin M1BUU
@m1buu.bsky.social
Likes hills, countryside and radio. QRP, SOTA, radio kit building
All those kinds of rigs with parallel BS170 PAs are sensitive to VSWR excursions. The absolute worst thing you can do is tweak an ATU with the rig at full power. Either use an attenuator (e.g QRPOMETER) or reduce the rig supply voltage to tune up and then increase the supply voltage once tuned.
November 22, 2025 at 5:34 PM
My QMX has been fine, I haven't tripped the SWR protection with the latest firmwares - I think the default was put up to 3:1. I run either a home made dipole or home made 7MHz EFHW on 40m and 20m.
November 22, 2025 at 5:23 PM
This Traveller was good only for scrap or total rebuild. The original engine did come back to life with a replacement cylinder head which happened to be laying around. The engine was sold for project funds.
August 28, 2025 at 6:41 PM
It's not stupid fast, but it can keep up with modern traffic. With the six speed box it cruises on the motorway with ease. Yes, the brakes are good and the mass is low anyway.
August 28, 2025 at 6:19 PM
Yeah, a little bit more up to date to make it usable. I tripped the engine management light yesterday, looks like we'll have to plug into the OBD port again.
August 28, 2025 at 5:43 PM
No need for a key, no clockwork in this Moggy. 1.8l VVC twin cam provides the go.
August 28, 2025 at 5:29 PM
AA batteries are generally a poor power source, but they'd probably work to some extent. A lipo battery and charger would be a good investment and needn't cost an arm and a leg.
August 28, 2025 at 3:23 PM
3S lipo 2200mAh, it's just a nice size and lasts for a long time.
August 27, 2025 at 9:55 PM
It was a bit cloudy yesterday.
August 24, 2025 at 6:01 PM
It hasn't rained, but millions of wee beasties have descended on Coll
August 14, 2025 at 8:23 PM
Yesterday was very hot, today was warm but cloudy.
August 14, 2025 at 8:12 PM
Great thanks! All aims achieved. 😀
August 14, 2025 at 8:06 PM
No, Kez is the wrong breed!
July 15, 2025 at 10:09 AM
This is my second one. This time I went for 60-15m as I want the option of 40m SSB. Last time I got a 20-10m version but I don't use 10m! I didn't want to risk re-working a perfectly functional rig, so I bought another.
July 7, 2025 at 6:25 PM